ELL-4FG150MA Equivalent & Substitute Parts

Part Overview

The ELL-4FG150MA is a 15 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 580 mA continuous current with 480mOhm DC resistance. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part is surface-mounted in a nonstandard 3.80mm x 3.80mm package with 1.20mm maximum seated height, suitable for compact SMD applications requiring shielded inductance.

Substiute Parts

ELL-4FG150MA

Panasonic Electronic ComponentsIn Stock: 906ELL-4FG150MA Datasheet

Current PartRFQ

ASPI-4030S-150M-T

Abracon LLCIn Stock: 36220ASPI-4030S-150M-T Datasheet

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CDH38D11SLDNP-150MC

Sumida America Components Inc.In Stock: 1157CDH38D11SLDNP-150MC Datasheet

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LMLP04A4M150CTAS

KYOCERA AVXIn Stock: 793LMLP04A4M150CTAS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELL-4FG150MA is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 15 µH (fixed requirement)
• Inductance tolerance: ±20% (fixed requirement)
• Inductance test frequency: 100 kHz (fixed requirement)
• Mounting type: Surface Mount (fixed requirement)
• RoHS compliance: ROHS3 Compliant (fixed requirement)

Secondary Compatibility Criteria:

• Current rating: minimum 580 mA continuous
• Saturation current: minimum 600 mA
• DC resistance: maximum 480 mOhm (lower is acceptable for improved performance)
• Shielding: Shielded (required for EMI-sensitive applications)
• Package footprint: 3.80mm x 3.80mm or 4.00mm x 4.00mm (minor variations acceptable for same PCB layer)
• Height: maximum 3.00mm seated height (space constraint dependent)

All three substitute parts meet the primary matching criteria. Secondary criteria variations are documented in the parameter comparison table to enable application-specific selection.

Parameter Comparison

Engineering Selection Recommendations

ASPI-4030S-150M-T (Abracon LLC) is suitable for applications requiring maximum current headroom and lowest DC resistance. This part offers 1.11 A continuous current rating and 190 mOhm DCR, representing significant performance improvement over the original specification. The 3.00mm seated height requires PCB layout verification for space-constrained designs. Active product status ensures long-term availability. ROHS3 compliance and unlimited MSL rating support production continuity.

CDH38D11SLDNP-150MC (Sumida America Components Inc.) provides the closest mechanical footprint match (3.80mm x 3.80mm, 1.20mm height) to the original ELL-4FG150MA. Current rating of 670 mA exceeds the original 580 mA specification. However, this part is unshielded, making it unsuitable for applications requiring EMI containment. DC resistance of 490 mOhm is marginally higher than the original. Active product status and ROHS3 compliance are confirmed. Operating temperature range limited to -40°C ~ 105°C.

LMLP04A4M150CTAS (KYOCERA AVX) offers balanced performance with 600 mA current rating, 400 mOhm DCR (improved over original), and shielded construction. Package size of 4.00mm x 4.00mm requires minor PCB footprint adjustment. Seated height of 1.20mm matches the original. Operating temperature range of -40°C ~ 125°C supports extended thermal applications. Active product status and ROHS3 compliance confirmed.

Frequently Asked Questions (FAQ)

Q: Can ASPI-4030S-150M-T replace ELL-4FG150MA in all applications?

A: ASPI-4030S-150M-T meets all electrical specifications with superior current and saturation ratings. However, the 3.00mm seated height (versus 1.20mm original) requires PCB layout verification. Footprint is 4.00mm x 4.00mm versus 3.80mm x 3.80mm original. Confirm available vertical clearance before substitution.

Q: Why is CDH38D11SLDNP-150MC listed if it is unshielded?

A: CDH38D11SLDNP-150MC is included as a substitute option for applications where EMI shielding is not required. The unshielded design may offer cost or performance advantages in non-EMI-sensitive circuits. For applications requiring shielding, ASPI-4030S-150M-T or LMLP04A4M150CTAS are appropriate selections.

Q: What is the impact of different DC resistance values on circuit performance?

A: DC resistance directly affects power dissipation and voltage drop across the inductor. ASPI-4030S-150M-T (190 mOhm) dissipates less power than the original (480 mOhm), improving efficiency. LMLP04A4M150CTAS (400 mOhm) provides intermediate performance. CDH38D11SLDNP-150MC (490 mOhm) is equivalent to the original specification.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. ASPI-4030S-150M-T, CDH38D11SLDNP-150MC, and LMLP04A4M150CTAS are all supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: What is the significance of the 100 kHz inductance test frequency?

A: The 100 kHz test frequency is the standard measurement condition for inductance value verification. All parts in this comparison are tested at 100 kHz, ensuring consistent inductance specifications across manufacturers.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. All three substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original ELL-4FG150MA environmental and regulatory requirements.